Better concurrency in Oracle than SQL Server?

Question

Is it true that better concurrency can be achieved in Oracle databases than in MS SQL Server databases? In particular in an OLTP scenario, such as an ERP system?

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Answer 1

He/She was probably referring to the facts that:

• In Oracle readers do not block writers and writers do not block readers
• Oracle does not maintain a list of row locks so there is no significant overhead in locking and locks never escalate to the table level.